Harness for a spray tank



FIG. 1 is a perspective view of a new and ornamental design for a harness for a spray tank with the harness shown attached to a spray tank that is shown in phantom for environment only and not forming part of the claimed invention;

FIG. 2 is a front elevation view of the harness;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a first side elevation view thereof;

FIG. 5 is a second side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view thereof. 

CLAIM The ornamental design for a harness for a spray tank, as shown and described. 